棉田棉铃虫寄生峰对常规棉及转Bt棉品种的趋性反应

摘要/Abstract

摘要： 连续4年采用人工定期释放棉铃虫卵、幼虫和定期回收法,研究了不同棉花品种与棉铃虫卵期、幼虫期寄生蜂种群数量变化的关系.通过对卵、幼虫寄生率反正弦转换后进行方差分析表明,无论是在棉铃虫卵期还是在其幼虫期,转基因棉田中棉铃虫卵和幼虫的被寄生率始终显著低于其亲本对照棉.运用“Y”型嗅觉仪测定转基因棉及其亲本对照棉对棉铃虫幼虫寄生蜂———中红侧沟茧蜂的选择性行为反应,用成对数据进行方差分析,并进行了“T”测验.结果表明,转基因棉对棉铃虫寄生蜂有较强的忌避反应,且取食转基因棉的棉铃虫幼虫与被害转基因棉两者的共同组合与单独被害棉之间对寄生蜂的忌避效应基本一致.

关键词: 棉花, 棉铃虫, 寄生蜂, 行为反应

Abstract: The relationship between the parasitic wasp population number of cotton bollworm (Helicoverpa armigera) and the varieties of cotton was studied by releasing and collecting the eggs and larvae of cotton bollworm on transgenic and non-transgenic cottons.The research results from²000 to 2003 showed that the parasitic rates of the eggs and larvae of cotton bollworm were notably lower in transgenic cotton field than in non-transgenic cotton field.At the same time,the effect of transgenic and non-transgenic cottons on the selection behavior of the parasitic wasp Microplitis mediatar of the larvae of cotton bollworm was studied by using “Y” olfactometer.The results showed that the selection response about the parasitic wasp Microplitis mediatar of cotton bollworm on non-transgenic cotton was prior to the transgenic cotton.

Key words: Cotton, Helicoverpa armigera, Parasitic wasp, Behavioral responses

中图分类号:

Q143

余月书, 杨益众, 陆宴辉. 棉田棉铃虫寄生峰对常规棉及转Bt棉品种的趋性反应[J]. 应用生态学报, 2004, (5): 845-848.

YU Yueshu, YANG Yizhong, LU Yanhui. Response of parasitic wasps of cotton bollworm to different cotton varieties with transgenic Bacillus thringienthsis genes[J]. Chinese Journal of Applied Ecology, 2004, (5): 845-848.

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